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Condensed Consolidated Statements Of Cash Flows (USD $)
 9 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Cash flows from operating activities:    
Net income (loss) $ (332,000) $ 1,611,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 493,000 508,000
Allowance for doubtful accounts 7,000 (17,000)
Share-based compensation 73,000 28,000
Changes in:    
Accounts receivable and other receivables 817,000 (415,000)
Inventories 644,000 (188,000)
Prepaid expenses (48,000) (56,000)
Other assets 8,000 17,000
Accounts payable and accrued expenses (555,000) 166,000
Income taxes receivable and payable (486,000) 158,000
Net cash provided by operating activities 621,000 1,812,000
Cash flows from investing activities:    
Purchases of equipment (245,000) (181,000)
Proceeds from sale of equipment 82,000  
Net cash used in investing activities (163,000) (181,000)
Cash flows from financing activities:    
Principal payments on term loan (268,000) (296,000)
Net proceeds from bank term loan refinancing   150,000
Principal payments on mortgage   (1,528,000)
Proceeds from exercise of stock options   27,000
Net cash used in financing activities (268,000) (1,647,000)
Net increase (decrease) in cash and cash equivalents 190,000 (16,000)
Cash and cash equivalents, beginning of period 4,689,000 3,794,000
Cash and cash equivalents, end of period 4,879,000 3,778,000
Supplemental Information    
Cash payments for interest 25,000 151,000
Cash payments for income taxes $ 54,000 $ 205,000