Quarterly report pursuant to Section 13 or 15(d)

15. Line of credit - PNC Bank (Details Narrative)

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15. Line of credit - PNC Bank (Details Narrative) - Revolving Credit Facility [Member] - PNC Bank National Association [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Mar. 31, 2017
Line of Credit Facility [Line Items]    
Amount of revolving line of credit   $ 15,000
Credit line maturity date May 01, 2017  
Minimum fixed charge coverage ratio 1.1 to 1.0  
Interest rate on the revolving line of credit PNC Base Rate plus 1.75% to 3.25%, or 1-, 2- or 3-month PNC LIBOR Rate plus 2.75% to 4.25%, with the rate being dependent on our level of fixed charge coverage