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Credit Facilities (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
May 12, 2014
Mar. 31, 2017
Debt Disclosure [Abstract]    
Available borrowings   $ 1,700
Alliance Credit Agreement [Member]    
Debt Disclosure [Abstract]    
Maximum borrowing line of credit capacity $ 5,000  
Interest rate 3.95%  
Description of collateral  
Inventories, accounts receivable, cash, marketablesecurities, and equipment
Expiration   May 12, 2017