CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets
Accounts receivable, reserve	$ 372	$ 321
Inventories, obsolescence reserve	$ 1,366us-gaap_InventoryValuationReserves	$ 417us-gaap_InventoryValuationReserves
Class A Common Stock [Member]
Telos stockholders' deficit
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	40,238,461	40,218,461
Common stock, shares outstanding (in shares)	40,238,461	40,218,461
Class B Common Stock [Member]
Telos stockholders' deficit
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, shares issued (in shares)	4,037,628	4,037,628
Common stock, shares outstanding (in shares)	4,037,628	4,037,628

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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