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Consolidated Statements of Cash Flows (USD $)
 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Cash flows from operating activities:    
Net income (loss) $ (876,000) $ 2,640,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 647,000 697,000
Allowance for doubtful accounts 9,000 (18,000)
Share-based compensation 108,000 43,000
Changes in:    
Accounts receivable and other receivables 1,428,000 (418,000)
Inventories 912,000 (475,000)
Prepaid expenses (26,000) 29,000
Other assets 7,000 18,000
Accounts payable and accrued expenses (1,523,000) 383,000
Income taxes receivable and payable (641,000) (1,000)
Net cash provided by operating activities 45,000 2,898,000
Cash flows from investing activities:    
Purchase of equipment (341,000) (265,000)
Proceeds from sale of equipment 82,000  
Net cash used in investing activities (259,000) (265,000)
Cash flows from financing activities:    
Principal payments on bank term loan (357,000) (236,000)
Principal payments on mortgage   (1,528,000)
Repurchase of stock options (6,000)  
Proceeds from exercise of stock options   26,000
Net cash used in financing activities (363,000) (1,738,000)
Net increase (decrease) in cash (577,000) 895,000
Cash, beginning of year 4,689,000 3,794,000
Cash, end of year 4,112,000 4,689,000
Supplemental Information    
Cash paid for interest 37,000 148,000
Cash paid for income taxes $ 56,000 $ 456,000