Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net income	$ 2,356us-gaap_NetIncomeLoss	$ 904us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Increase (decrease) in provision for uncollectible accounts receivable	7us-gaap_ProvisionForDoubtfulAccounts	(15)us-gaap_ProvisionForDoubtfulAccounts
Depreciation and amortization	1,838	2,325
Deferred income taxes		453us-gaap_DeferredIncomeTaxExpenseBenefit
Non-cash compensation	259us-gaap_ShareBasedCompensation	148us-gaap_ShareBasedCompensation
Pension expense	37us-gaap_PensionExpense	37us-gaap_PensionExpense
Gain on disposal of assets	(6)us-gaap_GainLossOnDispositionOfAssets	(27)us-gaap_GainLossOnDispositionOfAssets
Changes in operating assets and liabilities:
Accounts receivable	(1,119)	(223)
Inventories, net	1,138us-gaap_IncreaseDecreaseInInventories	(4,332)us-gaap_IncreaseDecreaseInInventories
Other assets	(1,201)	(401)
Accounts payable and accrued liabilities	(1,392)	1,748
Income taxes	58us-gaap_IncreaseDecreaseInIncomeTaxes	(200)us-gaap_IncreaseDecreaseInIncomeTaxes
Accrued compensation and employee benefits	255	154
Net cash provided by operating activities	2,230	571
Cash flows from investing activities
Capital expenditures	(1,362)	(2,198)
Proceeds from sale of property & equipment	13	207
Net cash used by investing activities	(1,349)	(1,991)
Cash flows from financing activities
Repurchase of common stock	(975)	(60)
Net cash used by financing activities	(975)	(60)
Net decrease in cash and cash equivalents	(94)	(1,480)
Cash and cash equivalents at beginning of period	19,512	16,697
Cash and cash equivalents at end of period	19,418	15,217
Cash paid during the period for:
Interest	10us-gaap_InterestPaid	13us-gaap_InterestPaid
Taxes	744us-gaap_IncomeTaxesPaid	305us-gaap_IncomeTaxesPaid
Disclosure of non-cash activities:
Change in unrealized gain resulting from change in fair value of derivative instruments, net of tax	779	120
Fixed assets in accounts payable		$ 5

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