Subsequent Events	3 Months Ended
Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	NOTE 12 — SUBSEQUENT EVENTS Sale of interest in DSIT On April 21, 2016, the Company closed on a transaction (the “DSIT Transaction”) initially entered into on January 28, 2016 for the sale of a 50% interest in its DSIT Solutions, Ltd. business to Rafael Advanced Defense Systems Ltd., a major Israeli defense company. At closing, Acorn received gross proceeds of $4,913 before escrow, fees and taxes. From the gross proceeds, Acorn deposited approximately $579 to satisfy the escrow requirements in the sale. The Company will be able access those funds, net of any disbursements, in October 2017. Acorn also paid an Israeli withholding tax of approximately $266. Acorn is also eligible to receive its pro-rata share of a $1,000 earn-out over a three-year period. Following the sale, Acorn owns approximately 41.2% of DSIT. Repayment of Leap Tide Loan On August 13, 2015, the Company executed a Loan and Security Agreement with Leap Tide Capital Partners III, LLC (“Leap Tide”), pursuant to which the Company borrowed $2,000 from Leap Tide (the “LT Loan”). Jan H. Loeb, the Company’s new President and CEO (see Note 8) is the Manager of Leap Tide. Principal and accrued interest was due and payable on August 13, 2016. Interest accrued and was payable quarterly at a rate of 10% per annum. On April 29, 2016, following the receipt of the net proceeds from the DSIT Transaction, the Company repaid in full the $2,000 of principal and all accrued interest in full satisfaction of the cash due to Leap Tide under the LT Loan. In addition to the interest payable in cash described above, Leap Tide received 850,000 shares of the Company’s common stock (the “Initial Shares”) at the closing and was entitled to vested rights to receive 179,167 additional shares of the Company’s common stock (each vested right to receive one share, a “Vested Share Right”) per month for each full month that the full principal amount of the LT Loan was outstanding. The number of Vested Share Rights that accrued in a given month was prorated to the extent less than the full principal amount was outstanding and/or for any partial month in which no principal amount was outstanding. Leap Tide is entitled to receive the Company’s common stock underlying its Vested Share Rights after the expiration of the Cash Settlement Period (defined below). Through April 29, 2016, Leap Tide earned 1,531,396 Vested Share Rights. Under the terms of the LT Loan, the Company may on or prior to 30 days after the repayment of the LT Loan (such 30-day period being referred to herein as the “Cash Settlement Period”) repurchase any or all Initial Shares and settle any or all Vested Share Rights accrued under the LT Loan for cash in lieu of stock. The cash repurchase/settlement price would be $0.30 for each Initial Share so repurchased and each Vested Share Right so settled. The Company does not expect to repurchase any of the Initial Shares or settle any of the accrued Vested Share Rights for cash. Repayment of Loans from Directors On April 29, 2016, following the receipt of the net proceeds from the DSIT Transaction, the Company repaid in full $275 ($200 from one director and $75 from a another director) under promissory notes plus interest equal to 15% of the amounts borrowed under the promissory notes. In addition, a third director who had lent the Company $100 under similar terms, elected to convert the principal and $15 of interest due into Common Stock of the Company. In accordance with the terms of the promissory note, the director received 465,587 shares of Common Stock of the Company.

Subsequent Events

3 Months Ended

Mar. 31, 2016

NOTE 12 — SUBSEQUENT EVENTS

Sale of interest in DSIT

On April 21, 2016, the Company closed on a transaction (the “DSIT Transaction”) initially entered into on January 28, 2016 for the sale of a 50% interest in its DSIT Solutions, Ltd. business to Rafael Advanced Defense Systems Ltd., a major Israeli defense company. At closing, Acorn received gross proceeds of $4,913 before escrow, fees and taxes. From the gross proceeds, Acorn deposited approximately $579 to satisfy the escrow requirements in the sale. The Company will be able access those funds, net of any disbursements, in October 2017. Acorn also paid an Israeli withholding tax of approximately $266. Acorn is also eligible to receive its pro-rata share of a $1,000 earn-out over a three-year period. Following the sale, Acorn owns approximately 41.2% of DSIT.

Repayment of Leap Tide Loan

On August 13, 2015, the Company executed a Loan and Security Agreement with Leap Tide Capital Partners III, LLC (“Leap Tide”), pursuant to which the Company borrowed $2,000 from Leap Tide (the “LT Loan”). Jan H. Loeb, the Company’s new President and CEO (see Note 8) is the Manager of Leap Tide. Principal and accrued interest was due and payable on August 13, 2016. Interest accrued and was payable quarterly at a rate of 10% per annum. On April 29, 2016, following the receipt of the net proceeds from the DSIT Transaction, the Company repaid in full the $2,000 of principal and all accrued interest in full satisfaction of the cash due to Leap Tide under the LT Loan.

In addition to the interest payable in cash described above, Leap Tide received 850,000 shares of the Company’s common stock (the “Initial Shares”) at the closing and was entitled to vested rights to receive 179,167 additional shares of the Company’s common stock (each vested right to receive one share, a “Vested Share Right”) per month for each full month that the full principal amount of the LT Loan was outstanding. The number of Vested Share Rights that accrued in a given month was prorated to the extent less than the full principal amount was outstanding and/or for any partial month in which no principal amount was outstanding. Leap Tide is entitled to receive the Company’s common stock underlying its Vested Share Rights after the expiration of the Cash Settlement Period (defined below). Through April 29, 2016, Leap Tide earned 1,531,396 Vested Share Rights.

Under the terms of the LT Loan, the Company may on or prior to 30 days after the repayment of the LT Loan (such 30-day period being referred to herein as the “Cash Settlement Period”) repurchase any or all Initial Shares and settle any or all Vested Share Rights accrued under the LT Loan for cash in lieu of stock. The cash repurchase/settlement price would be $0.30 for each Initial Share so repurchased and each Vested Share Right so settled. The Company does not expect to repurchase any of the Initial Shares or settle any of the accrued Vested Share Rights for cash.

Repayment of Loans from Directors

On April 29, 2016, following the receipt of the net proceeds from the DSIT Transaction, the Company repaid in full $275 ($200 from one director and $75 from a another director) under promissory notes plus interest equal to 15% of the amounts borrowed under the promissory notes.

In addition, a third director who had lent the Company $100 under similar terms, elected to convert the principal and $15 of interest due into Common Stock of the Company. In accordance with the terms of the promissory note, the director received 465,587 shares of Common Stock of the Company.