Semler Scientific (SMLR) 10-Q 6 Aug 24 2024 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2024	Aug. 01, 2024
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-36305
Entity Registrant Name	SEMLER SCIENTIFIC, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-1367393
Entity Address, Address Line One	2340-2348 Walsh Avenue, Suite 2344
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95051
City Area Code	877
Local Phone Number	774-4211
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SMLR
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		7,133,788
Entity Central Index Key	0001554859
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false

Condensed Statements of Income

Condensed Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Condensed Statements of Income
Revenues	$ 14,465	$ 18,605	$ 30,368	$ 36,811
Operating expenses:
Cost of revenues	1,255	1,219	2,501	2,488
Engineering and product development	1,440	1,762	2,578	3,392
Sales and marketing	3,456	4,985	7,131	10,177
General and administrative	2,964	3,459	5,832	7,318
Total operating expenses	9,115	11,425	18,042	23,375
Income from operations	5,350	7,180	12,326	13,436
Interest and dividend income	714	597	1,534	1,080
Change in fair value of notes held for investment	128	(111)	128	(217)
Change in fair value of digital assets	(5,055)		(5,055)
Other (expense) income, net	(4,213)	486	(3,393)	863
Pre-tax income	1,137	7,666	8,933	14,299
Income tax provision	1,126	1,787	2,849	3,451
Net income	$ 11	$ 5,879	$ 6,084	$ 10,848
Net income per share, basic	$ 0	$ 0.88	$ 0.88	$ 1.62
Weighted average number of shares used in computing basic net income per share	6,944,664	6,707,341	6,918,709	6,704,306
Net income per share, diluted	$ 0	$ 0.75	$ 0.78	$ 1.38
Weighted average number of shares used in computing diluted net income per share	7,795,149	7,867,001	7,789,101	7,887,584

Condensed Balance Sheets

Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 7,332	$ 57,200
Restricted cash	132	132
Trade accounts receivable, net of allowance for credit losses of $243 and $287, respectively	7,470	6,125
Short-term notes held for investments	6,100
Inventory, net	385	445
Prepaid expenses and other current assets	2,271	2,042
Total current assets	23,690	65,944
Assets for lease, net	1,768	2,285
Property and equipment, net	620	720
Long-term investments	512	512
Notes held for investment		5,372
Intangible digital assets	54,945
Other non-current assets	127	270
Deferred tax assets, net of valuation allowance of $1,207 and $0, respectively	3,124	2,962
Total assets	84,786	78,065
Current liabilities:
Accounts payable	227	402
Accrued expenses	5,086	4,502
Deferred revenue	840	1,120
Other short-term liabilities	211	176
Total current liabilities	6,364	6,200
Long-term liabilities:
Other long-term liabilities	24	70
Total long-term liabilities	24	70
Commitments and contingencies (Note 15)
Stockholders' equity:
Common stock, $0.001 par value; 50,000,000 shares authorized; 7,202,146 and 7,099,441 shares issued, and 6,987,724 and 6,885,019 shares outstanding (treasury shares of 214,422 and 214,422), respectively	7	7
Additional paid-in capital	12,504	11,985
Retained earnings	65,887	59,803
Total stockholders' equity	78,398	71,795
Total liabilities and stockholders' equity	$ 84,786	$ 78,065

Condensed Balance Sheets (Paren

Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Condensed Balance Sheets
Allowance for credit losses	$ 243	$ 287
Deferred tax asset valuation allowance	$ 1,207	$ 0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	7,202,146	7,099,441
Common stock, shares outstanding (in shares)	6,987,724	6,885,019
Treasury stock shares (in shares)	214,422	214,422

Condensed Statements of Stockho

Condensed Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Total
Balance at Dec. 31, 2022	$ 7		$ 16,449	$ 39,220	$ 55,676
Balance (in shares) at Dec. 31, 2022	6,906,544
Balance (in shares) at Dec. 31, 2022		(214,422)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock warrants acquired			(1,949)		(1,949)
Employee stock grants			846		846
Employee stock grants (in shares)	21,923
Taxes paid related to net share settlement of equity awards			(172)		(172)
Taxes paid related to net share settlement of equity awards (in shares)	(5,021)
Stock-based compensation			14		14
Net income				10,848	10,848
Balance at Jun. 30, 2023	$ 7		15,188	50,068	65,263
Balance (in shares) at Jun. 30, 2023	6,923,446
Balance (in shares) at Jun. 30, 2023		(214,422)
Balance at Mar. 31, 2023	$ 7		17,005	44,189	61,201
Balance (in shares) at Mar. 31, 2023	6,920,643
Balance (in shares) at Mar. 31, 2023		(214,422)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock warrants acquired			(1,949)		(1,949)
Employee stock grants			152		152
Employee stock grants (in shares)	3,875
Taxes paid related to net share settlement of equity awards			(27)		(27)
Taxes paid related to net share settlement of equity awards (in shares)	(1,072)
Stock-based compensation			7		7
Net income				5,879	5,879
Balance at Jun. 30, 2023	$ 7		15,188	50,068	65,263
Balance (in shares) at Jun. 30, 2023	6,923,446
Balance (in shares) at Jun. 30, 2023		(214,422)
Balance at Dec. 31, 2023	$ 7		11,985	59,803	$ 71,795
Balance (in shares) at Dec. 31, 2023	7,099,441
Balance (in shares) at Dec. 31, 2023		(214,422)			(214,422)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock grants			150		$ 150
Employee stock grants (in shares)	6,546
Taxes paid related to net share settlement of equity awards			(45)		(45)
Taxes paid related to net share settlement of equity awards (in shares)	(1,029)
Stock option exercises			269		$ 269
Stock option exercises (in shares)	97,188				97,188
Stock-based compensation			145		$ 145
Net income				6,084	6,084
Balance at Jun. 30, 2024	$ 7		12,504	65,887	$ 78,398
Balance (in shares) at Jun. 30, 2024	7,202,146
Balance (in shares) at Jun. 30, 2024		(214,422)			(214,422)
Balance at Mar. 31, 2024	$ 7		12,023	65,876	$ 77,906
Balance (in shares) at Mar. 31, 2024	7,134,193
Balance (in shares) at Mar. 31, 2024		(214,422)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock grants			150		150
Employee stock grants (in shares)	6,546
Stock option exercises			213		213
Stock option exercises (in shares)	61,407
Stock-based compensation			118		118
Net income				11	11
Balance at Jun. 30, 2024	$ 7		$ 12,504	$ 65,887	$ 78,398
Balance (in shares) at Jun. 30, 2024	7,202,146
Balance (in shares) at Jun. 30, 2024		(214,422)			(214,422)

Condensed Statements of Cash Fl

Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 6,084	$ 10,848
Reconciliation of Net Income to Net Cash Provided by Operating Activities:
Depreciation	346	279
Deferred tax expense	(163)	(207)
Loss on disposal of assets for lease	319	114
Gain on short-term investments		(237)
Allowance for credit losses	(44)	92
Change in fair value of notes held for investment	(128)	217
Change in fair value of digital assets	5,055
Stock-based compensation	295	860
Changes in Operating Assets and Liabilities:
Trade accounts receivable	(1,292)	(2,240)
Inventory	60	(7)
Prepaid expenses and other current assets	(135)	(950)
Other non-current assets	43	106
Accounts payable	(175)	(326)
Accrued expenses	584	3,495
Other current and non-current liabilities	(291)	13
Net Cash Provided by Operating Activities	10,558	12,057
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property and equipment	(48)	(260)
Purchase of notes held for investment	(500)	(500)
Purchase of digital assets	(60,000)
Proceeds from maturities of short-term investments		57,707
Purchase of short-term investments		(49,728)
Purchase of assets for lease		(674)
Net Cash (Used in) Provided by Investing Activities	(60,548)	6,545
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchase of warrants		(1,949)
Taxes paid related to net settlement of equity awards	(45)	(172)
Stock issuance expenses	(102)
Proceeds from exercise of stock options	269
Net Cash Provided by (Used in) Financing Activities	122	(2,121)
(DECREASE) INCREASE IN CASH	(49,868)	16,481
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	57,332	23,014
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 7,464	$ 39,495

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2024
Basis of Presentation
Basis of Presentation	1. Basis of Presentation Semler Scientific, Inc., a Delaware corporation (“Semler” or “the Company”), prepared the unaudited interim financial statements included in this report in accordance with United States generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the audited financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2023 filed with the SEC on March 7, 2024 (the “Annual Report”). In the opinion of management, these financial statements include all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the periods presented. The results of operations for the interim periods shown in this report are not necessarily indicative of the results that may be expected for any future period, including the full year. ​ Intangible Digital Assets ​ The Company accounts for its digital assets, which are comprised solely of bitcoin, as indefinite-lived intangible assets in accordance with Accounting Standards Codification (“ASC”) 350, Intangibles—Goodwill and Other ​ The Company purchases bitcoins for long term investment. It intends to hold its digital assets for long term gains and treats them as long term capital assets for tax purposes. Unrealized gains/losses are treated as capital gains/losses for tax purposes. A valuation allowance is recorded for unrealized capital losses. See Note 10 to the Unaudited Condensed Financial Statements for additional information regarding the Company’s purchases and sales of digital assets. ​ Recently Issued Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures ​ Recently Adopted Accounting Pronouncement ​ In December 2023, the FASB issued ASU No. 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets ASU 2023-08 second quarter ended June 30, 2024, effective retroactively as of January 1, 2024 with no cumulative-adjustment to the retained earnings as of beginning of the annual period of adoption. ​ ​

Variable-Fee Revenue

Variable-Fee Revenue	6 Months Ended
	Jun. 30, 2024
Variable-Fee Revenue
Variable-Fee Revenue	2. Variable-Fee Revenue The Company recognizes variable-fee licenses (i.e., fee per test) and sales of hardware equipment and accessories in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers Total fees from variable-fee licenses represent approximately $14,988 and $16,938 for the six months ended June 30, 2024 and 2023, respectively. Total sales of hardware and equipment accessories represent approximately $710 and $611 of revenues for the three months ended June 30, 2024 and 2023, respectively. Total sales of hardware and equipment accessories represent approximately $1,527 and $951 of revenues for the six months ended June 30, 2024 and 2023, respectively. See Note 14 to the naudited ondensed inancial tatements for more information. ​ Upon shipment under variable-fee license contracts, assets for lease are sold to the customers, and the asset is recognized as cost of revenue . ​

Accounts Receivable and Allowan

Accounts Receivable and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2024
Accounts Receivable and Allowance for Credit Losses
Accounts Receivable and Allowance for Credit Losses	3. Accounts Receivable and Allowance for Credit Losses ​ ​ As of June 30, 2024, the allowance for credit losses was $ 243 . During the three months period ended June 30, 2024, the Company provided an additional reserve of $31 and recovered $27 from customers. During the six months period ended June 30, 2024, the Company provided an additional reserve of $31 and recovered $75 from customers. The allowance for credit losses as of December 31, 2023, was $287 . ​

Inventory

Inventory	6 Months Ended
	Jun. 30, 2024
Inventory
Inventory	4. Inventory, which is made up of finished goods, is recorded at the lower of cost or net realizable value. Cost is determined on the first-in, first-out method. The Company periodically analyzes its inventory levels to identify inventory that has a cost basis in excess of its estimated realizable value and writes down such inventory as appropriate. The inventory balance was $385 and $445 as of June 30, 2024 and December 31, 2023, respectively. ​

Assets for Lease, net

Assets for Lease, net	6 Months Ended
	Jun. 30, 2024
Assets for Lease, net
Assets for Lease, net	5. Assets for Lease, net The Company provides financing of certain equipment through operating leases (see Note 14 to the Unaudited Condensed Financial Statements). ​ ​ Assets for lease consist of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Assets for lease ​ $ 2,906 ​ $ 3,375 ​ Less: accumulated depreciation ​ (1,138) ​ (1,090) ​ Assets for lease, net ​ $ 1,768 ​ $ 2,285 ​ ​

Property and Equipment, net

Property and Equipment, net	6 Months Ended
	Jun. 30, 2024
Property and Equipment, net
Property and Equipment, net	6. Property and Equipment, net ​ Property and equipment, net consists of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Property and equipment, gross ​ $ 1,591 ​ $ 1,544 ​ Less: accumulated depreciation ​ (971) ​ (824) ​ Property and equipment, net ​ $ 620 ​ $ 720 ​ ​ Depreciation expense amounted to three months ended June 30, 2024 and 2023, respectively. Depreciation expense amounted to $147 and $132 for the six months ended June 30, 2024 and 2023, respectively

Long-Term Investments

Long-Term Investments	6 Months Ended
	Jun. 30, 2024
Long-Term Investments
Long-Term Investments	7. Long-Term Investments ​ Long term investments consist of the following for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 ​ Investments in SYNAPS Dx $ 512 ​ $ 512 ​ Total long-term investments ​ $ 512 ​ $ 512 ​ ​ In September 2020, the Company acquired a promissory note from NeuroDiagnostics Inc., which is doing business as SYNAPS Dx, in the principal amount of $500, $100 of which was retained for expense reimbursement. Subsequently, in December 2020, the Company agreed to convert the promissory note, together with all accrued interest thereon, into shares of preferred stock of SYNAPS Dx as repayment in full of the promissory note. The value of the note exchanged for the shares of preferred stock of SYNAPS Dx held by the Company as of June 30, 2024 and December 31, 2023 was approximately $512. The investments in SYNAPS Dx were recorded in accordance with ASC 321, Investments – Equity Securities and overall business prospects of the investee as well as significant adverse changes in the external environment these investments operate. If qualitative assessment indicates the investments are impaired, the fair value of these equity securities would be estimated, which would involve a significant degree of judgement and subjectivity. The Company qualitatively assessed the investment for impairment in accordance with ASC 321. As of June 30, 2024 and December 31, 2023, the Company determined that there was no impairment for the investment in SYNAPS Dx.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2024
Fair Value Measurements
Fair Value Measurements	8. Fair Value Measurements ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Hierarchy ​ Level 1 ​ Level 2 ​ Level 3 ​ Total As of June 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government money market fund accounts $ 3,551 ​ $ — ​ $ — ​ $ 3,551 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bitcoin investments ​ 54,945 ​ ​ — ​ ​ — ​ ​ 54,945 (Included in Intangible digital assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in debt securities ​ — ​ ​ — ​ ​ 5,000 ​ ​ 5,000 (Included in short-term notes held for investment) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Assets $ 58,496 ​ $ — ​ $ 5,000 ​ $ 63,496 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Total As of December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government money market fund accounts $ 41,373 ​ $ — ​ $ — ​ $ 41,373 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury bill ​ — ​ ​ 10,494 ​ ​ — ​ ​ 10,494 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in debt securities ​ — ​ ​ — ​ ​ 4,372 ​ ​ 4,372 (Included in notes held for investment) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Assets $ 41,373 ​ $ 10,494 ​ $ 4,372 ​ $ 56,239 ​ ​ Fair value is defined as the exchange price that would be received for an asset or an exit price paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of the fair value hierarchy under Level 1 Level 2 Level 3 The financial instruments of the Company consist primarily of cash, U.S. government money market fund accounts, trade receivables, trade payables, bitcoins, U.S. treasury bill investments and debt securities. Because carrying values of cash, trade receivables, and payables are equal to or approximate their fair value, the Company excluded them from the leveling requirements. U.S. government money market fund accounts are classified as Level 1 due to their short-term nature, their market interest rates and also based on the fact that they are publicly traded. Bitcoins purchased for investments, which are included in Intangible digital assets are classified as Level 1 as the unadjusted quoted prices in active markets are used for the fair valuation. The Company also invested in non-convertible promissory notes and equity securities in a privately held company, which were recorded on cost basis. See Notes 7 and 9 to the Unaudited Condensed Financial Statements for more information. ​ The Company's privately held debt security is recorded at fair value on a recurring basis. The estimation of fair value for these investments requires the use of significant unobservable inputs, and as a result, the Company deems these assets as Level 3 within the fair value measurement framework. ​ As of June 30, 2024, the Company valued the debt security at face value of $5,000 as the issuer of the debt security notified their intention to repay the debt before the maturity date of December 6, 2024. The Company valued the debt security at face value due to the expected repayment. The fair value of the Company’s privately held debt security was estimated at $ as of December 31, 2023

Notes Held for Investment

Notes Held for Investment	6 Months Ended
	Jun. 30, 2024
Notes Held for Investment
Notes Held for Investment	9. Notes Held for Investment ​ Notes receivable consists of the following for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ ​ December 31, ​ ​ ​ 2024 ​ ​ 2023 ​ Senior secured promissory notes ​ $ 1,000 ​ $ 1,000 ​ Secured convertible promissory notes ​ ​ 5,100 ​ ​ 4,372 ​ Total notes held for investment ​ $ 6,100 ​ $ 5,372 ​ ​ In June 2022, the Company loaned Mellitus an aggregate of $1,000 through the purchase of two senior secured promissory notes that bear interest at a rate of 5% per annum, which mature in three years unless accelerated due to an event of default as provided in the notes. Repayment of notes is secured by a first priority interest in all of Mellitus’ assets. As of June 30, 2024, this note was reclassified to short-term notes held for investments. In December 2022, the Company entered into a senior convertible promissory note arrangement with Monarch, providing Monarch with up to $5,000 in available funding, which was fully drawn down as of June 30, 2024. The Monarch debt security accrues interest at 10% per annum, payable monthly, and the principal balance is due December 6, 2024. The note together with $100 of transaction expenses is due and payable on the occurrence of an event of default or change of control unless accelerated due to the conversion into preferred stock prior thereto at the option of the Company. The Company has the option to extend the maturity date for two consecutive one-year terms. The Monarch debt security can be converted into Monarch’s shares at the Company’s option upon (a) an equity financing at Monarch, (b) upon a change of control at Monarch, or (c) at the Company’s option at any time prior to the maturity date. If converted upon a change of control, the Company has the right to receive a cash payment equal to the balance of the Monarch debt security or the amount payable upon conversion into Monarch’s shares. The Monarch debt security is redeemable at any time at Monarch’s option or automatically upon an event of default (as defined in the note). Monarch notified the Company of its intention to repay the debt before its maturity. Hence, this note, including transaction fees receivable of $100 , was reclassified to short-term notes held for investment as of June 30, 2024. As of December 31, 2023, the note was classified as long-term note held for investment. The Company made an irrevocable election to account for the Mellitus and Monarch debt securities using the fair value option under ASC 825 – Financial Instruments believes to be preferable to recognizing the host instrument at fair value under ASC 320 and potentially separately recognizing certain embedded features as bifurcated derivatives under ASC 815. As of June 30, 2024 and December 31, 2023, the Company estimated the fair value of the Monarch debt security to be $5,100, which includes transaction fees receivable of $100 and $4,372, respectively. The Company recognizes interest income on the Monarch debt securities, which is included in interest and dividend income in the Unaudited Condensed Statements of Income. For the three months ended June 30, 2024 and 2023, the Company recognized $133 and $118 of interest income from Monarch and Mellitus notes, respectively, which is included in prepaid expenses and other current assets. For the six months ended June 30, 2024 and 2023, the Company recognized $258 and $227 , of interest income from Monarch and Mellitus notes, respectively.

Intangible Digital Assets

Intangible Digital Assets	6 Months Ended
	Jun. 30, 2024
Intangible Digital Assets
Intangible Digital Assets	10. Intangible Digital Assets ​ On May 28, 2024, the Company announced that its board of directors adopted bitcoin as its primary treasury reserve asset. Under this new treasury strategy, the Company purchases and holds bitcoins for long term investment purposes. The Company accounts for its bitcoin as an indefinite-lived intangible asset in accordance with ASC 350, Intangibles—Goodwill and Other Bitcoin Investment The Company early adopted ASU No. 2023-08 in the second quarter of 2024 effective retroactively as of January 1, 2024. See Recently Adopted Accounting Pronouncement The Company’s bitcoin purchased for investment purpose are initially recorded at cost, inclusive of transaction costs and fees. Subsequently, the Company remeasures its bitcoin investment ​ ​ Reconciliation of fair value ​ ​ ​ ​ ​ ​ ​ ​ For the ​ For the ​ Three-Months ​ Six-Months ​ Period Ended ​ Period Ended ​ June 30, 2024 ​ June 30, 2024 ​ ​ ​ ​ ​ ​ Intangible digital assets held: ​ ​ ​ ​ ​ Beginning balance at fair value $ — ​ $ — Additions ​ 60,000 ​ ​ 60,000 Dispositions ​ — ​ ​ — Unrealized gain, net ​ 87 ​ ​ 87 Unrealized loss, net ​ (5,142) ​ ​ (5,142) Ending Balance $ 54,945 ​ $ 54,945 ​

Other Non-current assets

Other Non-current assets	6 Months Ended
	Jun. 30, 2024
Other Non-current assets
Other Non-current assets	11. Other Non-current assets ​ Other non-current assets consist of the following for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 ​ Other ​ $ 127 ​ $ 270 ​ Total other non-current assets ​ $ 127 ​ $ 270 ​ ​ Other includes right-of-use assets (“ROU”) of $108 and long-term deposits of $19 as of June 30, 2024. As of December 31, 2023, ROU asset of $150 , miscellaneous receivable of $100 and long term deposits balances of $20 , respectively.

Accrued Expenses

Accrued Expenses	6 Months Ended
	Jun. 30, 2024
Accrued Expenses
Accrued Expenses	12 . Accrued expenses consist of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Compensation ​ $ 2,697 ​ $ 2,008 ​ Accrued Taxes ​ ​ 1,708 ​ ​ 1,991 ​ Miscellaneous Accruals ​ 681 ​ 503 ​ Total Accrued Expenses ​ $ 5,086 ​ $ 4,502 ​ ​

Concentration of Credit Risk

Concentration of Credit Risk	6 Months Ended
	Jun. 30, 2024
Concentration of Credit Risk
Concentration of Credit Risk	13. Credit risk is the risk of loss from amounts owed by the financial counterparties. Credit risk can occur at multiple levels; as a result of broad economic conditions, challenges within specific sectors of the economy, or from issues affecting individual companies. Financial instruments that potentially subject the Company to credit risk consist of cash, bitcoins and accounts receivable. As of June 30, 2024 and December 31, 2023, the Company held deposits . These deposits are largely uninsured. The Company also invested in U.S. government money market funds in the amount of $3,551 as of June 30, 202 4 . bitcoins Management periodically monitors the creditworthiness of its customers and believes that it has adequately provided for exposure to potential credit loss. F or the three months ended June 30, 2024, three customers (including affiliates) accounted for 43.6% , 26.6% and 10.8% of the Company’s revenues, respectively. For the three months ended June 30, 2023, two customers (including affiliates) accounted for 37.2% and 33.5% of the Company’s revenues, respectively. For the six months ended June 30, 2024, three customers accounted for 44.3% , 25.6% and 10.6% , of the Company’s revenues, respectively. For the six months ended June 30, 2023, two customers accounted for 39.0% and 33.5% , of the Company’s revenues, respectively. As of June 30, 2024, three customers accounted for 54.3% , 16.0% , and 12.8% of the Company’s accounts receivable, respectively. As of June 30, 2024, three vendors accounted for 24.7%, 21.8% and 11.5% of the Company’s accounts payable, respectively. As of December 31, 2023, two vendors accounted for 24.0% and 10.1% of the Company’s accounts payable, respectively. ​

Leases

Leases	6 Months Ended
	Jun. 30, 2024
Leases
Leases	14. Lessee Arrangements On July 31, 2020, the Company entered into a 61 -month lease agreement for office space to use, as necessary, for office administration, lab space and assembly and storage purposes, located in Santa Clara, California. The Company took possession of the leased office space in September 2020, and the lease is effective through September 30, 2025. As of June 30, 2024, the remaining lease term is 15 months with no options to renew. The Company recognized facilities lease expenses of $22 and $22 for the three months ended June 30, 2024 and 2023, respectively. The Company recognized facilities lease expenses of $44 and $44 for the six months ended June 30, 2024 and 2023, respectively. The following table summarizes the future minimum rental payments required under operating leases that had initial or remaining non-cancelable lease terms greater than one year as of June 30, 2024: ​ ​ ​ ​ ​ ​ Total 2024 Remaining period ​ 47 2025 ​ 71 Total undiscounted future minimum lease payments ​ 118 Less: present value discount ​ (2) Total lease liabilities ​ 116 Lease expense in excess cash payment ​ (8) Total ROU asset ​ $ 108 ​ As of June 30, 2024, the Company’s ROU asset was $108 , which was recorded on the Company’s balance sheet as other noncurrent assets, and the Company’s current and noncurrent lease liabilities were $92 and $24 , respectively, which were recorded on the Company’s balance sheet as other short-term liabilities and other long-term liabilities, respectively. The Company used a discount rate of 2.5% for calculating ROU and lease liability. Lessor Arrangements The Company enters into contracts with customers for the Company’s QuantaFlo product. The Company has determined these contracts meet the definition of a lease under Topic 842. The lease portfolio primarily consists of operating leases that are short-term in nature (monthly, quarterly or one year, all of which have renewal options). During the three months ended June 30, 2024 and 2023, the Company recognized approximately $6,774 and $9,618 , respectively, in lease revenues related to these arrangements, which is included in Revenues on the Unaudited Condensed Statements of Income. During the six months ended June 30, 2024 and 2023, the Company recognized approximately $ and $ , respectively, in lease revenues related to these arrangements, which is included in Revenues on the Unaudited Condensed Statements of Income. The Company made an accounting policy election to apply the practical expedient to not separate lease and eligible non-lease components . The lease component is the predominant component and consists of fees charged for use of the equipment over the period of the arrangement. The nature of the eligible non-lease component is primarily software support. The assets associated with these leasing arrangements are included in Assets for Lease, net on the Unaudited Condensed Balance Sheets as Assets (see Note 5).

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies
Commitments and Contingencies	15. Indemnification Obligations The Company enters into agreements with customers, partners, lenders, consultants, lessors, contractors, sales representatives and parties to certain transactions in the ordinary course of the Company’s business. These agreements may require the Company to indemnify the other party against third party claims alleging that its product infringes a patent or copyright. Certain of these agreements require the Company to indemnify the other party against losses arising from: a breach of representations or covenants, claims relating to property damage, personal injury or acts or omissions of the Company, its employees, agents or representatives. The Company has also agreed to indemnify the directors and certain officers and employees in accordance with the by-laws of the Company. These indemnification provisions will vary based upon the nature and terms of the agreements. In many cases, these indemnification provisions do not contain limits on the Company’s liability, and the occurrence of contingent events that will trigger payment under these indemnities is difficult to predict. As a result, the Company cannot estimate its potential liability under these indemnities. The Company believes that the likelihood of conditions arising that would trigger these indemnities is remote and, historically, the Company has not made any significant payment under such indemnification provisions. Accordingly, the Company has not recorded any liabilities relating to these agreements. In certain cases, the Company has recourse against third parties with respect to the aforesaid indemnities, and the Company believes it maintains adequate levels of insurance coverage to protect the Company with respect to potential claims arising from such agreements. ​ 401(K) Plan ​ Effective January 1, 2022, the Company started to match 50% of employee’s 401(k) deferral up to a maximum of 6% of the employee’s eligible earnings. For the three month periods ended June 30, 2024 and 2023, the Company matched $71 and $104, respectively. For the six month periods ended June 30, 2024 and 2023, the Company matched $135 and $205, respectively. ​ Other ​ The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) provides for an employee retention payroll tax credit for certain employers, which is a refundable tax credit against certain employment taxes equal to 50% of the qualified wages an eligible employer pays to employees after March 12, 2020 and before December 31, 2021. For each employee, wages (including health plan costs) up to $10,000 can be counted to determine the amount of the 50% credit. The Company started claiming this credit on its July 2020 payroll until mid-April 2021 when it determined that it no longer qualified given the change in government restrictions on travel that had impacted its sales activities. The Company’s determination that it qualified to claim the employee retention payroll tax credit is subjective and subject to audit by the Internal Revenue Service (“IRS”). If the IRS were to disagree with the Company’s tax position, it could be required to pay back the retention credit earned, along with penalties. As of June 30, 2024, the Company has collected $1.24 million in this retention credit. No credit was claimed for the three months ended June 30, 2024 and 2023. Litigation

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2024
Stockholders' Equity
Stockholders' Equity	16. Stockholders’ Equity The Company has 50,000,000 authorized shares of capital stock, all of which are designated as common stock with par value of $0.001 per share. Each holder of shares of common stock is entitled to one vote for each share held. Issuance of Common Stock On June 6, 2024, the Company filed a shelf registration statement on Form S-3, and filed amendments thereto on July 11, 2024 and July 31, 2024, under which the Company may, from time to time, once declared effective, offer common stock at-the-market price up to a total amount of $150 million. At the same time, the Company filed an “at the market” offering prospectus covering the offering, issuance and sale of up to $50.0 million of common stock that may be issued and sold from time to time under the Controlled Equity Offering SM

Stock Incentive Plan

Stock Incentive Plan	6 Months Ended
	Jun. 30, 2024
Stock Incentive Plan
Stock Incentive Plan	17 . The Company’s stock-based compensation program is designed to attract and retain employees while also aligning employees’ interests with the interests of its stockholders. Stock options have been granted to employees under the stockholder-approved 2007 Key Person Stock Option Plan (“2007 Plan”) and stock options and restricted stock have been granted to employees under the stockholder-approved 2014 Stock Incentive Plan (“2014 Plan”). As of June 30, 2024, there were no longer any awards outstanding options under the 2007 Plan. Stockholder approval of the 2014 Plan (which expired per its terms on July 24, 2024) became effective in September 2014. The 2014 Plan originally provided that the aggregate number of shares of common stock that may be issued pursuant to awards granted under the 2014 Plan may not exceed 450,000 shares (the “Share Reserve”), however in October 2015, the stockholders approved a 1,500,000 increase to the Share Reserve. In addition, the Share Reserve automatically increases on January 1st of each year, for a period of not more than 10 years, beginning on January 1st of the year following the year in which the 2014 Plan became effective and ending on (and including) January 1, 2024, in an amount equal to 4% of the total number of shares of common stock outstanding on December 31st of the preceding calendar year. The Company’s board of directors may act prior to January 1st of a given year to provide that there will be no January 1st increase in the Share Reserve for such year or that the increase in the Share Reserve for such year will be a lesser number of shares of common stock than would otherwise occur. On January 1, 2024, the Share Reserve increased by 275,401. The Share Reserve is currently 3,858,289 shares as of June 30, 2024. As of June 30, 2024, there were 1,909,361 shares of an aggregate total of 3,858,289 shares available for future stock-based compensation grants under the 2014 Plan. Treasury Stock Acquired- Related Party Transaction Stock Awards The Company granted fully vested stock awards of Stock Options Aggregate intrinsic value represents the difference between the closing market value as of June 30, 2024 of the underlying common stock and the exercise price of outstanding, in-the-money options. A summary of the Company’s stock option activity and related information for the six months ended June 30, 2024 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options Outstanding ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ ​ ​ ​ ​ Number of ​ Weighted ​ Remaining ​ Aggregate ​ ​ Stock Options ​ Average ​ Contractual ​ Intrinsic Value ​ Outstanding Exercise Price Term (In Years) (In Thousands) Balance, December 31, 2023 1,021,785 ​ $ 3.84 3.76 ​ $ 41,333 Options granted ​ 173,700 ​ $ 23.04 ​ — ​ ​ — Options exercised (97,188) ​ ​ 2.81 ​ — ​ ​ — Balance, June 30, 2024 1,098,297 ​ $ 6.94 ​ 3.22 ​ $ 30,158 Exercisable as of June 30, 2024 915,976 ​ $ 3.68 ​ 1.77 ​ $ 28,138 ​ As of June 30, 2024, During the six months ended June 30, 2024, the Company granted 173,700 stock options to the employees and non-executive members of the board of directors with an exercise price ranging from $22.92 to $23.32 and grant date fair value ranging from $10.35 to $14.97 . In applying the Black-Scholes options pricing model, following assumptions were used: 1) expected price volatility range of 62.3% - 77.2% ; risk-free interest rate range of 4.5% - 4.9% ; expected term range of 2 - 7 years; and no dividend yield. Employee options have vesting terms of 1/4 th of options being vested one year after the grant date and 1/48 th for each month thereafter contingent upon the participant’s continued service beginning on the initial vesting date and ending when the vested ratio equals 1/1. Non-executive members of board of directors have vesting terms of 1/24 th of options being vested per month over a period of two years . No options were granted during the six month period ended June 30, 2023 . The following table represents the stock based compensation for the three and six months ended June 30, 2024 and 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ Six months ended June 30 ​ ​ 2024 2023 2024 2023 ​ Cost of Revenues ​ $ 10 ​ $ — ​ $ 14 ​ $ — ​ Engineering and Product Development ​ ​ 9 ​ ​ — ​ ​ 13 ​ ​ 45 ​ Sales and Marketing ​ 30 ​ ​ 127 ​ ​ 34 ​ ​ 298 ​ General and Administrative ​ 219 ​ ​ 32 ​ ​ 234 ​ ​ 517 ​ Total ​ $ 268 ​ $ 159 ​ $ 295 ​ $ 860 ​ ​

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2024
Income Taxes
Income Taxes	18. Income Taxes ​ The Company’s income tax provision for the three months ended June 30, 2024 and 2023 was $1,126 and $1,787, respectively. T he Company’s income tax provision for the six months ended June 30, 2024 and 2023 was $2,849 and $3,451 , respectively. For uncertain tax positions that meet a “more likely than not” threshold, the Company recognizes the benefit of uncertain tax positions in the financial statements. The Company’s practice is to recognize interest and penalties, if any, related to uncertain tax positions in income tax expense in the statements of income. ​ The effective tax rate for the three and six months ended June 30, 2024 was 99.03% and 31.89%, compared to 23.31% and 24.13%, in the same period of the prior year. The increase in effective tax rate for the three and six months ended June 30, 2024 was primarily due to the valuation allowance related to net unrealized capital losses incurred for the three and six months ended June 30, 2024, partially reduced by higher tax benefits associated with employee stock-based compensation. ​ The effective tax rate for the three and six months ended June 30, 2024 differed from the U.S. federal statutory rate of 21% primarily due to state income taxes (net of federal benefit), tax benefits associated with employee share-based compensation plans, and federal research and development (“R&D”) credit benefit and valuation allowance associated with the Company’s digital assets investments. The effective tax rate for the three and six months ended June 30, 2023 differed from the U.S. federal statutory rate of 21% primarily d ue to state income taxes (net of federal benefit), and federal and state R&D credit benefit. As of June 30, 2024, and December 31, 2023, the Company had $580 and $470, respectively, of unrecognized tax benefits, excluding interest and penalties. The Company’s practice is to recognize interest and penalty expenses related to uncertain tax positions, which was $119 and $87 as of June 30, 2024 and December 31, 2023, respectively. ​ On August 16, 2022, the Creating Helpful Incentives to Produce Semiconductors for America Act of 2022 (“CHIPS and Science Act”), and Inflation Reduction Act (“IRA”) were signed into law in the United States. Among other things, the CHIPS and Science Act provides incentives and tax credits for the global chip manufacturers who choose to set-up or expand existing operations in the United States. The IRA imposes a 15% corporate alternative minimum tax for tax years beginning after December 31, 2022, levies a 1% excise tax on net stock repurchases after December 31, 2022, and provides tax incentives to promote clean energy. The IRA is primarily applicable to large corporations with an annual revenue of $1 billion or over. Implementation of this act had no impact on the Company’s financial statements as of June 30, 2024.

Net Income Per Share, Basic and

Net Income Per Share, Basic and Diluted	6 Months Ended
	Jun. 30, 2024
Net Income Per Share, Basic and Diluted
Net Income Per Share, Basic and Diluted	19. Basic earnings per share (“EPS”) represent net income attributable to common stockholders divided by the weighted average number of common shares outstanding during the measurement period. Diluted EPS represents net income attributable to common stockholders divided by the weighted average number of common shares outstanding during the measurement period while also giving effect to all potentially dilutive common shares that were outstanding during the period using the treasury stock method. Basic and diluted EPS is calculated as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ ​ 2024 ​ 2023 ​ ​ Shares Net Income EPS Shares Net Income EPS Basic ​ 6,944,664 ​ $ 11 ​ $ 0.00 ​ 6,707,341 ​ $ 5,879 ​ $ 0.88 Common stock warrants ​ — ​ ​ — ​ ​ ​ ​ 39,292 ​ ​ — ​ ​ ​ Common stock options ​ 850,485 ​ ​ — ​ ​ ​ ​ 1,120,368 ​ ​ — ​ ​ ​ Diluted ​ 7,795,149 ​ $ 11 ​ $ 0.00 ​ 7,867,001 ​ $ 5,879 ​ $ 0.75 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, ​ ​ 2024 ​ 2023 ​ ​ Shares Net Income EPS Shares Net Income EPS Basic ​ 6,918,709 ​ $ 6,084 ​ $ 0.88 ​ 6,704,306 ​ $ 10,848 ​ $ 1.62 Common stock warrants ​ ​ ​ ​ — ​ ​ ​ ​ 58,083 ​ ​ — ​ ​ ​ Common stock options ​ 870,392 ​ ​ — ​ ​ ​ ​ 1,125,195 ​ ​ — ​ ​ ​ Diluted ​ 7,789,101 ​ $ 6,084 ​ $ 0.78 ​ 7,887,584 ​ $ 10,848 ​ $ 1.38 ​ ​

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 11	$ 5,879	$ 6,084	$ 10,848

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2024
Basis of Presentation
Basis of Presentation	Semler Scientific, Inc., a Delaware corporation (“Semler” or “the Company”), prepared the unaudited interim financial statements included in this report in accordance with United States generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the audited financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2023 filed with the SEC on March 7, 2024 (the “Annual Report”). In the opinion of management, these financial statements include all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the periods presented. The results of operations for the interim periods shown in this report are not necessarily indicative of the results that may be expected for any future period, including the full year.
Intangible Digital Assets	Intangible Digital Assets ​ The Company accounts for its digital assets, which are comprised solely of bitcoin, as indefinite-lived intangible assets in accordance with Accounting Standards Codification (“ASC”) 350, Intangibles—Goodwill and Other ​ The Company purchases bitcoins for long term investment. It intends to hold its digital assets for long term gains and treats them as long term capital assets for tax purposes. Unrealized gains/losses are treated as capital gains/losses for tax purposes. A valuation allowance is recorded for unrealized capital losses. See Note 10 to the Unaudited Condensed Financial Statements for additional information regarding the Company’s purchases and sales of digital assets.
Recently Issued and Adopted Accounting Pronouncements	Recently Issued Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures ​ Recently Adopted Accounting Pronouncement ​ In December 2023, the FASB issued ASU No. 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets ASU 2023-08 second quarter ended June 30, 2024, effective retroactively as of January 1, 2024 with no cumulative-adjustment to the retained earnings as of beginning of the annual period of adoption.

Assets for Lease, net (Tables)

Assets for Lease, net (Tables)	6 Months Ended
	Jun. 30, 2024
Assets for Lease, net
Summary of assets for lease, net	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Assets for lease ​ $ 2,906 ​ $ 3,375 ​ Less: accumulated depreciation ​ (1,138) ​ (1,090) ​ Assets for lease, net ​ $ 1,768 ​ $ 2,285 ​

Property and Equipment, net (Ta

Property and Equipment, net (Tables)	6 Months Ended
	Jun. 30, 2024
Property and Equipment, net
Schedule of property and equipment, net	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Property and equipment, gross ​ $ 1,591 ​ $ 1,544 ​ Less: accumulated depreciation ​ (971) ​ (824) ​ Property and equipment, net ​ $ 620 ​ $ 720 ​

Long-Term Investments (Tables)

Long-Term Investments (Tables)	6 Months Ended
	Jun. 30, 2024
Long-Term Investments
Schedule of carrying value of non-marketable equity investments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 ​ Investments in SYNAPS Dx $ 512 ​ $ 512 ​ Total long-term investments ​ $ 512 ​ $ 512 ​

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Measurements
Schedule of financial assets measured at fair value on a recurring basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Hierarchy ​ Level 1 ​ Level 2 ​ Level 3 ​ Total As of June 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government money market fund accounts $ 3,551 ​ $ — ​ $ — ​ $ 3,551 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bitcoin investments ​ 54,945 ​ ​ — ​ ​ — ​ ​ 54,945 (Included in Intangible digital assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in debt securities ​ — ​ ​ — ​ ​ 5,000 ​ ​ 5,000 (Included in short-term notes held for investment) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Assets $ 58,496 ​ $ — ​ $ 5,000 ​ $ 63,496 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Total As of December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government money market fund accounts $ 41,373 ​ $ — ​ $ — ​ $ 41,373 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury bill ​ — ​ ​ 10,494 ​ ​ — ​ ​ 10,494 (Included in cash and cash equivalents) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in debt securities ​ — ​ ​ — ​ ​ 4,372 ​ ​ 4,372 (Included in notes held for investment) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Assets $ 41,373 ​ $ 10,494 ​ $ 4,372 ​ $ 56,239

Notes Held for Investment (Tabl

Notes Held for Investment (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Held for Investment
Schedule of notes receivable	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ ​ December 31, ​ ​ ​ 2024 ​ ​ 2023 ​ Senior secured promissory notes ​ $ 1,000 ​ $ 1,000 ​ Secured convertible promissory notes ​ ​ 5,100 ​ ​ 4,372 ​ Total notes held for investment ​ $ 6,100 ​ $ 5,372 ​

Intangible Digital Assets (Tabl

Intangible Digital Assets (Tables)	6 Months Ended
	Jun. 30, 2024
Intangible Digital Assets
Schedule of reconciliation of the fair values	​ ​ ​ ​ ​ ​ ​ ​ For the ​ For the ​ Three-Months ​ Six-Months ​ Period Ended ​ Period Ended ​ June 30, 2024 ​ June 30, 2024 ​ ​ ​ ​ ​ ​ Intangible digital assets held: ​ ​ ​ ​ ​ Beginning balance at fair value $ — ​ $ — Additions ​ 60,000 ​ ​ 60,000 Dispositions ​ — ​ ​ — Unrealized gain, net ​ 87 ​ ​ 87 Unrealized loss, net ​ (5,142) ​ ​ (5,142) Ending Balance $ 54,945 ​ $ 54,945 ​

Other Non-current assets (Table

Other Non-current assets (Tables)	6 Months Ended
	Jun. 30, 2024
Other Non-current assets
Schedule of other non-current assets	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 ​ Other ​ $ 127 ​ $ 270 ​ Total other non-current assets ​ $ 127 ​ $ 270 ​

Accrued Expenses (Tables)

Accrued Expenses (Tables)	6 Months Ended
	Jun. 30, 2024
Accrued Expenses
Schedule of accrued expenses	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ ​ 2024 2023 Compensation ​ $ 2,697 ​ $ 2,008 ​ Accrued Taxes ​ ​ 1,708 ​ ​ 1,991 ​ Miscellaneous Accruals ​ 681 ​ 503 ​ Total Accrued Expenses ​ $ 5,086 ​ $ 4,502 ​ ​

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2024
Leases
Schedule of future minimum rental payments required under operating leases	​ ​ ​ ​ ​ ​ Total 2024 Remaining period ​ 47 2025 ​ 71 Total undiscounted future minimum lease payments ​ 118 Less: present value discount ​ (2) Total lease liabilities ​ 116 Lease expense in excess cash payment ​ (8) Total ROU asset ​ $ 108

Stock Incentive Plan (Tables)

Stock Incentive Plan (Tables)	6 Months Ended
	Jun. 30, 2024
Stock Incentive Plan
Schedule of stock option activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options Outstanding ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ ​ ​ ​ ​ Number of ​ Weighted ​ Remaining ​ Aggregate ​ ​ Stock Options ​ Average ​ Contractual ​ Intrinsic Value ​ Outstanding Exercise Price Term (In Years) (In Thousands) Balance, December 31, 2023 1,021,785 ​ $ 3.84 3.76 ​ $ 41,333 Options granted ​ 173,700 ​ $ 23.04 ​ — ​ ​ — Options exercised (97,188) ​ ​ 2.81 ​ — ​ ​ — Balance, June 30, 2024 1,098,297 ​ $ 6.94 ​ 3.22 ​ $ 30,158 Exercisable as of June 30, 2024 915,976 ​ $ 3.68 ​ 1.77 ​ $ 28,138
Schedule of stock-based compensation expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ Six months ended June 30 ​ ​ 2024 2023 2024 2023 ​ Cost of Revenues ​ $ 10 ​ $ — ​ $ 14 ​ $ — ​ Engineering and Product Development ​ ​ 9 ​ ​ — ​ ​ 13 ​ ​ 45 ​ Sales and Marketing ​ 30 ​ ​ 127 ​ ​ 34 ​ ​ 298 ​ General and Administrative ​ 219 ​ ​ 32 ​ ​ 234 ​ ​ 517 ​ Total ​ $ 268 ​ $ 159 ​ $ 295 ​ $ 860 ​ ​

Net Income Per Share, Basic a_2

Net Income Per Share, Basic and Diluted (Tables)	6 Months Ended
	Jun. 30, 2024
Net Income Per Share, Basic and Diluted
Schedule of basic and diluted net EPS	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ ​ 2024 ​ 2023 ​ ​ Shares Net Income EPS Shares Net Income EPS Basic ​ 6,944,664 ​ $ 11 ​ $ 0.00 ​ 6,707,341 ​ $ 5,879 ​ $ 0.88 Common stock warrants ​ — ​ ​ — ​ ​ ​ ​ 39,292 ​ ​ — ​ ​ ​ Common stock options ​ 850,485 ​ ​ — ​ ​ ​ ​ 1,120,368 ​ ​ — ​ ​ ​ Diluted ​ 7,795,149 ​ $ 11 ​ $ 0.00 ​ 7,867,001 ​ $ 5,879 ​ $ 0.75 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, ​ ​ 2024 ​ 2023 ​ ​ Shares Net Income EPS Shares Net Income EPS Basic ​ 6,918,709 ​ $ 6,084 ​ $ 0.88 ​ 6,704,306 ​ $ 10,848 ​ $ 1.62 Common stock warrants ​ ​ ​ ​ — ​ ​ ​ ​ 58,083 ​ ​ — ​ ​ ​ Common stock options ​ 870,392 ​ ​ — ​ ​ ​ ​ 1,125,195 ​ ​ — ​ ​ ​ Diluted ​ 7,789,101 ​ $ 6,084 ​ $ 0.78 ​ 7,887,584 ​ $ 10,848 ​ $ 1.38

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Basis of Presentation
Retained earnings	$ 65,887	$ 59,803
Accounting Standards Update [Extensible Enumeration]	ASU 2023-08
ASU 2023-08 | Cumulative-adjustment
Basis of Presentation
Retained earnings		$ 0

Variable-Fee Revenue (Details)

Variable-Fee Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Variable-fee licenses
Variable-Fee Revenue
Revenue	$ 6,981	$ 8,376	$ 14,988	$ 16,938
Hardware and equipment accessories
Variable-Fee Revenue
Revenue	$ 710	$ 611	$ 1,527	$ 951

Accounts Receivable and Allow_2

Accounts Receivable and Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts Receivable and Allowance for Credit Losses
Accounts receivable, net	$ 7,470	$ 7,470	$ 6,125
Accounts receivable, net, related to revenue recognized under ASC 606	5,123	5,123	3,373
Allowance for credit losses	243	243	$ 287
Allowance for credit loss, additional reserve	31	31
Allowance for credit loss, recovery	$ 27	$ 75

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory
Inventory balance	$ 385	$ 445

Assets for Lease, net (Details)

Assets for Lease, net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets for Lease, net
Assets for lease	$ 2,906	$ 3,375
Less: accumulated depreciation	(1,138)	(1,090)
Assets for lease, net	$ 1,768	$ 2,285

Assets for Lease, net - Additio

Assets for Lease, net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Assets for Lease, net
Depreciation expense	$ 74	$ 77	$ 151	$ 147
Reduction to accumulated depreciation for returned and retired items	50	67	104	264
Loss on disposal of assets for lease	$ (130)	$ (36)	$ (319)	$ (114)

Property and Equipment, net (De

Property and Equipment, net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property and Equipment, net
Property and equipment, gross	$ 1,591	$ 1,544
Less: accumulated depreciation	(971)	(824)
Property and equipment, net	$ 620	$ 720

Property and Equipment, net - A

Property and Equipment, net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Property and Equipment, net
Depreciation expense	$ 73	$ 73	$ 147	$ 132

Long-Term Investments (Details)

Long-Term Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Equity Securities without Readily Determinable Fair Value [Line Items]
Total long-term investments	$ 512	$ 512
Investments in SYNAPS Dx
Equity Securities without Readily Determinable Fair Value [Line Items]
Total long-term investments	$ 512	$ 512

Long-Term Investments - Additio

Long-Term Investments - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended
	Sep. 30, 2020	Jun. 30, 2024	Dec. 31, 2023
Equity Securities without Readily Determinable Fair Value [Line Items]
Long-term investments		$ 512	$ 512
Investments in SYNAPS Dx
Equity Securities without Readily Determinable Fair Value [Line Items]
Promissory note acquired, principal	$ 500
Promissory note retained for expense reimbursement	$ 100
Long-term investments		512	512
Impairment		$ 0	$ 0

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government money market fund accounts	$ 3,551	$ 41,373
Bitcoin investments	54,945
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government money market fund accounts	3,551	41,373
Bitcoin investments	54,945
U.S. Treasury bill		10,494
Investment in debt securities	5,000	4,372
Total Assets	63,496	56,239
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government money market fund accounts	3,551	41,373
Bitcoin investments	54,945
Total Assets	58,496	41,373
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury bill		10,494
Total Assets		10,494
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in debt securities	5,000	4,372
Total Assets	$ 5,000	$ 4,372

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Measurements
Debt security at face value	$ 5,000
Debt securities measured at fair value		$ 4,372

Notes Held for Investment (Deta

Notes Held for Investment (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Dec. 31, 2022 USD ($) item	Jun. 30, 2022 USD ($) item	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes held for investment			$ 6,100		$ 6,100		$ 5,372
Interest income from promissory notes			133	$ 118	258	$ 227
Changes in fair value					128
Long-term Investments.			512		512		512
Senior secured promissory notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes held for investment			1,000		1,000		1,000
Interest rate (as a percent)		5%
Number of notes receivable | item		2
Term (in years)		3 years
Aggregate principal amount		$ 1,000
Secured convertible promissory note
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes held for investment			5,100		5,100		4,372
Secured convertible promissory note | Monarch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes held for investment			5,100		5,100		5,100
Maximum amount of available funding	$ 5,000
Transaction fee	$ 100
Option to extend the maturity date | item	2
Period to extend the maturity date	1 year
Transaction fee receivable			$ 100		$ 100		$ 4,372
Interest rate	10%

Intangible Digital Assets (Deta

Intangible Digital Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($) item
Intangible Digital Assets
Crypto Asset, Number of Units | item	877
Crypto Asset, Cost	$ 60,000
Fair Value	$ 54,945
Crypto Asset, Name [Extensible Enumeration]	smlr:BitcoinMember

Intangible Digital Assets- Reco

Intangible Digital Assets- Reconciliation of fair value (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024
Crypto Asset [Roll Forward]
Additions	$ 60,000	$ 60,000
Unrealized gain, net	87	87
Unrealized loss, net	(5,142)	(5,142)
Ending Balance	$ 54,945	$ 54,945

Other Non-current assets (Detai

Other Non-current assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Other Non-current assets
Other	$ 127	$ 270
Total other non-current assets	$ 127	$ 270

Other Non-current assets - Addi

Other Non-current assets - Additional Information Details (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Other Non-current assets
ROU asset	$ 108	$ 150
Miscellaneous receivables		100
Long-term deposits	$ 19	$ 20

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accrued Expenses
Compensation	$ 2,697	$ 2,008
Accrued Taxes	1,708	1,991
Miscellaneous Accruals	681	503
Total Accrued Expenses	$ 5,086	$ 4,502

Concentration of Credit Risk (D

Concentration of Credit Risk (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($) customer	Jun. 30, 2023 customer	Jun. 30, 2024 USD ($) item customer	Jun. 30, 2023 customer	Dec. 31, 2023 USD ($) customer item
Concentration of Credit Risk
Deposits	$ 3,913		$ 3,913		$ 5,465
U.S. treasury bills					10,494
U.S. Government money market fund accounts	3,551		3,551		$ 41,373
Crypto Asset, Cost	60,000		60,000
Bitcoin investments	$ 54,945		$ 54,945
Crypto Asset, Name [Extensible Enumeration]			smlr:BitcoinMember
Customer concentration risk | Revenue
Concentration of Credit Risk
Number of customers | customer	3	2	3	2
Customer concentration risk | Revenue | Customer one
Concentration of Credit Risk
Concentration risk percentage	43.60%	37.20%	44.30%	39%
Customer concentration risk | Revenue | Customer two
Concentration of Credit Risk
Concentration risk percentage	26.60%	33.50%	25.60%	33.50%
Customer concentration risk | Revenue | Customer three
Concentration of Credit Risk
Concentration risk percentage	10.80%		10.60%
Customer concentration risk | Accounts receivable
Concentration of Credit Risk
Number of customers | customer			3		3
Customer concentration risk | Accounts receivable | Customer one
Concentration of Credit Risk
Concentration risk percentage			54.30%		27.50%
Customer concentration risk | Accounts receivable | Customer two
Concentration of Credit Risk
Concentration risk percentage			16%		27.50%
Customer concentration risk | Accounts receivable | Customer three
Concentration of Credit Risk
Concentration risk percentage			12.80%		23.60%
Vendor concentration risk | Accounts payable
Concentration of Credit Risk
Number of vendors | item			3		2
Vendor concentration risk | Accounts payable | Vendor one
Concentration of Credit Risk
Concentration risk percentage			24.70%		24%
Vendor concentration risk | Accounts payable | Vendor two
Concentration of Credit Risk
Concentration risk percentage			21.80%		10.10%
Vendor concentration risk | Accounts payable | Vendor three
Concentration of Credit Risk
Concentration risk percentage			11.50%

Leases - Future minimum rental

Leases - Future minimum rental payments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Future minimum rental payments required under operating leases
2024 Remaining period	$ 47
2025	71
Total undiscounted future minimum lease payments	118
Less: present value discount	(2)
Total lease liabilities	116
Lease expense in excess cash payment	(8)
Total ROU asset	$ 108	$ 150

Leases - Lessee Arrangements (D

Leases - Lessee Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Jul. 31, 2020
Leases
Lease agreement term						61 months
Remaining lease term	15 months		15 months
Options to renew			false
Lease expenses	$ 22	$ 22	$ 44	$ 44
ROU asset	$ 108		$ 108		$ 150
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent		Other Assets, Noncurrent
Current lease liabilities	$ 92		$ 92
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Liabilities, Current		Other Liabilities, Current
Noncurrent lease liabilities	$ 24		$ 24
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent		Other Liabilities, Noncurrent
Discount rate	2.50%		2.50%

Leases - Lessor Arrangements (D

Leases - Lessor Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Leases
Lease revenue	$ 6,774	$ 9,618	$ 13,853	$ 18,922
Lease, Practical Expedient, Lessor Single Lease Component [true false]	true		true
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues	Revenues	Revenues

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Commitments And Contingencies [Line Items]
Employer matching contribution			50%
Company match amount	$ 71	$ 104	$ 135	$ 205
Retention credit	1,240		$ 1,240
Credit claimed	$ 0	$ 0
Maximum
Commitments And Contingencies [Line Items]
Maximum contribution of percentage of employee's eligible earnings			6%

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Millions	Jun. 30, 2024 Vote $ / shares shares	Jun. 06, 2024 USD ($)	Dec. 31, 2023 $ / shares shares
Stockholders Equity Deficit [Line Items]
Common stock, shares authorized (in shares) | shares	50,000,000		50,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001		$ 0.001
Number of votes for each share | Vote	1
Common stock at-the-market price up to a total amount		$ 150
Sales Agreement
Stockholders Equity Deficit [Line Items]
Common stock at-the-market price up to a total amount		50
Securities may be sold in other offerings		$ 50

Stock Incentive Plan - Addition

Stock Incentive Plan - Additional information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	Oct. 31, 2015	Jun. 30, 2024	Jun. 30, 2023	Jan. 01, 2024	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock option granted		173,700	0
Exercise price		$ 23.04
Stock awards granted			21,923
Aggregate of shares granted fully vested stock awards		6,546
Fair value of stock awards on grant date		$ 150	$ 798
Net shares issued after deducting taxes paid on granted shares			16,902
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of unvested stock awards		3 years 2 months 19 days
Expected volatility, Minimum		0.623%
Expected volatility, Maximum		0.772%
Risk-free interest rate, Minimum		0.045%
Risk-free interest rate, Maximum		0.049%
Expected dividend rate		0%
Fair value of unvested stock options		$ 2,539
Employee Stock Option [Member] | Vested one year after the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (in percent)		25%
Vesting period (in years)		1 year
Employee Stock Option [Member] | Each month thereafter contingent upon the participant's continued service beginning on the initial vesting date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (in percent)		2.08%
Employee Stock Option [Member] | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 10.35
Expected term (in years)		2 years
Employee Stock Option [Member] | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 14.97
Expected term (in years)		7 years
Nonemployee | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock option granted		173,700
Nonemployee | Employee Stock Option [Member] | Vested per month over a period of two years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (in percent)		4.17%
Vesting period (in years)		2 years
Nonemployee | Employee Stock Option [Member] | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 22.92
Nonemployee | Employee Stock Option [Member] | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price		$ 23.32
2014 Stock Incentive Plan | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future stock-based compensation grants		1,909,361
Maximum number of shares issued pursuant to awards granted under plan		3,858,289			450,000
Maximum term of stock option grants		10 years
Number of share reserve approved	1,500,000
Number of shares increase in share reserve				275,401
Percentage of shares reserve increased	4%
Total number of unvested shares		3,858,289

Stock Incentive Plan - Treasury

Stock Incentive Plan - Treasury Stock Acquired (Details) - USD ($) $ in Thousands	25 Months Ended
	Mar. 31, 2024	Mar. 14, 2022
Stock Incentive Plan
Shares authorized under Share Repurchase Program		$ 20,000
Treasury stock acquired (in shares)	148,500
Cost of treasury stock acquired	$ 4,991

Stock Incentive Plan - Stock op

Stock Incentive Plan - Stock option activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Number of Stock Options Outstanding
Balance, Beginning	1,021,785
Options exercised	(97,188)
Options granted	173,700	0
Balance, Ending	1,098,297		1,021,785
Exercisable, Ending	915,976
Weighted Average Exercise Price
Balance, Beginning	$ 3.84
Options exercised	2.81
Options granted	23.04
Balance, Ending	6.94		$ 3.84
Exercisable, Ending	$ 3.68
Weighted Average Remaining Contractual Term, Options Outstanding (in years)	3 years 2 months 19 days		3 years 9 months 3 days
Weighted Average Remaining Contractual Term, Options Exercisable (in years)	1 year 9 months 7 days
Aggregate Intrinsic Value, Options Outstanding	$ 30,158		$ 41,333
Aggregate Intrinsic Value, Options Exercisable	$ 28,138

Stock Incentive Plan - Stock-ba

Stock Incentive Plan - Stock-based compensation - Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 268	$ 159	$ 295	$ 860
Cost of Revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	10		14
Engineering and Product Development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	9		13	45
Sales and Marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	30	127	34	298
General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 219	$ 32	$ 234	$ 517

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Taxes
Income tax provision	$ 1,126	$ 1,787	$ 2,849	$ 3,451
Effective income tax rate	99.03%	23.31%	31.89%	24.13%
Federal statutory rate	21%	21%	21%	21%
Unrecognized tax benefits	$ 580		$ 580		$ 470
Interest and penalty expenses related to uncertain tax positions			$ 119		$ 87

Net Income Per Share, Basic a_3

Net Income Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Income Per Share, Basic and Diluted
Basic shares (in shares)	6,944,664	6,707,341	6,918,709	6,704,306
Common stock warrants (in shares)		39,292		58,083
Common stock options (in shares)	850,485	1,120,368	870,392	1,125,195
Diluted shares (in shares)	7,795,149	7,867,001	7,789,101	7,887,584
Net Income - Basic EPS	$ 11	$ 5,879	$ 6,084	$ 10,848
Net Income - Common stock warrants	0	0	0	0
Net Income - Common stock options	0	0	0	0
Net Income - Diluted EPS	$ 11	$ 5,879	$ 6,084	$ 10,848
Basic EPS (in dollars per share)	$ 0	$ 0.88	$ 0.88	$ 1.62
Diluted EPS (in dollars per share)	$ 0	$ 0.75	$ 0.78	$ 1.38