Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Dec. 31, 2018	Mar. 31, 2018
Current assets:
Cash	$ 1,573	$ 1,329
Accounts receivable, net of allowance for doubtful accounts of $27 at December 31, 2018 and $27 at March 31, 2018	1,883	2,664
Inventories, net	10,112	9,034
Prepaid expenses and other current assets	641	590
Total current assets	14,209	13,617
Equipment and leasehold improvements, net	15,183	15,734
Restricted cash		65
Other assets	291	291
Total assets	29,683	29,707
Current liabilities:
Accounts payable	4,055	3,527
Accrued expenses	1,073	892
Short-term contract obligation	332
Line of credit	1,750	500
Current maturities of long-term debt	663	655
Customer deposits	172	133
Total current liabilities	8,045	5,707
Long-term debt, less current maturities	5,328	5,790
Other long-term liabilities	57	103
Total liabilities	13,430	11,600
Commitments and contingencies
Stockholders’ equity:
Preferred stock of $0.01 par value, authorized 10,000,000 shares; no shares issued and outstanding
Common stock of $0.02 par value, shares authorized 50,000,000; 5,836,110 shares issued and outstanding at December 31, 2018 and 5,772,032 shares at March 31, 2018	117	115
Additional paid-in capital	32,318	32,051
Accumulated deficit	(16,182)	(14,059)
Total stockholders’ equity	16,253	18,107
Total liabilities and stockholders’ equity	$ 29,683	$ 29,707