Note J - Leases - Lease Cost (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Amortization of right-of-use assets	$ 31
Interest on lease liabilities	11
Total finance lease cost	42
Operating lease cost	124
Short-term lease cost	57
Variable lease cost	15
Less: sublease income	(25)
Total lease costs	$ 213